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horn relay


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The horn relay is a switch which is activated remotely by the horn button on the steering wheel. It serves two purposes, 1) it allows for the switching of a higher power circuit (horn) with a low power circuit (the button), 2) it allows the button, which grounds a wire when pushed, to switch positive to the horn. There are other reasons as well, but these are the basics. Also, YES, you need one to make the horn work.


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